Rose and Behm (1994) posit that when quitting smoking, it is necessary to reproduce the sensation in the lungs that smoking gives. They found that inhaling Black Pepper essential oil mimicked the feeling of inhaling smoke, thus reducing the cravings.

Working with frankincense could revolutionise the treatment of cancer. Currently, with chemotherapy, doctors blast the area around a tumour to kill the cancer, but that also kills healthy cells, and weakens the patient. Treatment with frankincense could eradicate the cancerous cells alone and let the others live.